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She just can't catch a break. Less than one year after her ex-fiancé Rob Kardashian posted her nude photos in a revenge porn attack, Blac Chyna is being exposed on social media again. On Monday, Feb. 19, an anonymous Twitter account shared a video clip of Chyna as she was allegedly involved in oral sex with another man — and one thing is very clear, the man in the video is not Rob.

The video is no longer floating around on Twitter, but according to TMZ, it was one minute and 23 seconds long and it's very clear that the woman in the video is Chyna. Now, her ex Mechie is coming forward and claiming to be the mystery man in the video. According to the aspiring rapper's rep, the sex tape was made last July, and while he is the one who recorded the "encounter," it was saved to Chyna's phone and he never had his own copy.

Chyna reportedly did not give anyone permission to post the clip and now the cops are involved and she wants them to track down the person who posted the video online. Chy's attorney Walter Mosely said that they will ask the police to investigate since "it's a criminal matter."

Initially, fans thought that Chy's ex Mechie — who is the same man who was in the photos that Rob had posted of Chyna on Instagram last year — was responsible for the leak but The Shade Room reported that in the hours since the first clip was shared, someone uploaded the full video, which proves that Mechie is not involved. Fans now think that Chy's rumored boyfriend Playboi Carti could be behind the leak.

Meanwhile, another unlikely person got involved in this mess — rapper Cardi B's best friend Star Brim. Star allegedly reposted a clip of Chyna's sex tape on Instagram, which led fans to believe that she was the one who leaked it in the first place. However, Star quickly shared another post and explained that she wasn't the one who originally shared the clip. "I dnt [sic] have beef with Chyna I dnt [sic] even know shorty," she wrote. "It's my IG I'll post WTF I like, no one can stop me but Instagram." Both Chyna and Mechi want the leaker found and prosecuted.